Now THAT is exactly what I was hoping to do with my system someday. Good to see that it can work, thanks for posting that picture. The only thing I'd do differently is recess-mount the other headunit slightly, so that I could put a stealth cover on it.

My other problem is that my final goal is for the other head unit to be a nav system with a retractable touchscreen. (Because there's no point in going to all that trouble for just a CD player. CDs? Bah.)

The thing is, the nav screen would either have to obscure the empeg face or obscure the climate controls when extended. That's a tough choice to make, since I need access to both.